export const AVATAR_CORES = [
  "bg-blue-500", "bg-violet-500", "bg-emerald-500",
  "bg-amber-500", "bg-rose-500", "bg-cyan-500", "bg-indigo-500",
];

export function avatarIniciais(nome) {
  const n = String(nome || "?").trim();
  const partes = n.split(/\s+/);
  if (partes.length >= 2) return (partes[0][0] + partes[1][0]).toUpperCase();
  return n.slice(0, 2).toUpperCase();
}

export function avatarCor(nome) {
  let hash = 0;
  for (const c of String(nome || "")) hash = (hash * 31 + c.charCodeAt(0)) & 0xffffffff;
  return AVATAR_CORES[Math.abs(hash) % AVATAR_CORES.length];
}